我們經常會看到很多網站的統計代碼都是以js調用的形式顯示的，下面我們就來看看那如何執行個體的吧。
$countfile = "num.txt";
//定義計數器寫入的檔案是目前的目錄下count.txt，然後我們應當測試該檔案能否開啟
if (($fp = fopen($countfile, "r+")) == false) { //用讀寫入模式開啟檔案，若不能開啟就退出
printf ("開啟檔案 %s 失敗!",$countfile);
exit;
}
else
{
//如果檔案能夠正常開啟，就讀入檔案中的資料，假設是1
$count = fread ($fp,10);
//讀取10位元據
$count = $count + 1;
fclose ($fp);
//關閉當前檔案
$fp = fopen($countfile, "w+");
//以覆蓋模式開啟檔案
fwrite ($fp,$count);
//寫入加1後的新資料
fclose ($fp);
//並關閉檔案
echo 'document.write("'.$count.'")n';
//用java script形式輸出資料
}
?>
在html檔案裡面js調用方法。
<HTML>
<HEAD>
<TITLE>頁面分離計數器範例</TITLE>
</HEAD>
<BODY>
您好，您是第
<SCRIPT LANGUAGE="java script" src="FileCount.php">
//引用時注意php計數器所在的伺服器及目錄路徑。
</SCRIPT>
位訪客
</BODY>
</HTML>
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